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[aprssig] Time to UPGRADE obsolete DIGIS!

Ray Wells vk2tv at exemail.com.au
Mon Jun 9 08:11:42 UTC 2008


Dave Baxter wrote:

>You can use 27C512 chips too, often much easier to find..  Just program
>the '256 image in the TOP half of the chip, and it will work just fine
>in a socket expecting a 256.   If you want to be doubly sure, program it
>into both top and bottom halfs of the chip.
>
>I've been doing this with other equipment that normaly expects 27256's,
>and never had a failure yet.
>
>As to UIDIGI.  AFIK, that does not run on the TNC220, due to that not
>being a "clone" of the TNC2.  The UIGIGI website seems rather slow and
>clunky today....
>
>  
>
Absolutely correct re the TNC220, they're not a TNC2 clone but they make 
a useful paperweight.

>>-----Original Message-----
>>From: Chuck Gooden [mailto:Chuck.Gooden at comcast.net] 
>>Sent: 06 June 2008 15:18
>>To: bruninga at usna.edu; TAPR APRS Mailing List
>>Subject: Re: [aprssig] Time to UPGRADE obsolete DIGIS!
>>
>>Looks like they are availbale from Jameco (http://www.jameco.com) for
>>$3.19 USD
>>
>>Robert Bruninga wrote:
>>    
>>
>>>Everyone else, if you can find old 27256 EPROMS (I think) 
>>>      
>>>
>>save them to 
>>    
>>
>>>backup the dwindling supply of these old EPROMS.
>>>  
>>>      
>>>
>>
>>    
>>
>This mail has been scanned by Palmer Cook Computer Services Limited.  www.palmercook.co.uk
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